TY  - BOOK
AU  - Ayala,Carlos
AU  - Spellberg,Brad
TI  - Boards and wards: a review for USMLE steps 2 & 3 
SN  - 1405103418 (pbk.)
PY  - 2003///
CY  - Malden, Mass.
PB  - Blackwell
KW  - Clinical Medicine
KW  - examination questions
ER  -